I've run across a signal on 40M that has me puzzled. Because this
reflector doesn't accept images, I have put an HDSDR image in Dropbox
with a link address of
https://www.dropbox.com/s/zgat3frt70zhrgg/wide.png?dl=0. ; As you'll see,
it definitely has 120Hz major intervals, as well as minor signals at 60
Hz in between. They look like "sidebands" of the central signal That
tempts me to think it must be some sort of powerline-driven device, like
a switching power supply. but there's only one of it, so far as I can
tell, across the HF spectrum here, and it was not there this morning
when I got up.
Before I start running around killing breakers, does this look familiar?
--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.
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